Linked from
The 16 pages that link to State variable, each with the reason it gives.
ThermodynamicsRelated: Pressure, volume, and temperature specify thermodynamic states.
EnthalpyNarrower topic: Pressure, volume, temperature, and enthalpy describe system states.
Computer simulationRelated: State variables record the simulated system's changing condition.
Linear dynamical systemRelated: State variables summarize the system’s memory at a given time.
Thermodynamic equationsBroader topic: These are the quantities appearing in thermodynamic relations.